Fiberglass Failure #4 - View
Photos below
Location:
Hubbard County near Park Rapids, MN
Date: Dec. 2007
Neither NCI nor Heartland Contractors had anything to do with this Project Prior
to Dec. 2007.
Problems Noticed: Severe Snow and Frost Melting in Irregular Patterns, Huge Ice
Dams, Drastic Water Condensation and Terrible Dripping Inside Home. A few Mice.
Overview: 8 yr old home. Frost and Snow Melting in very cold weather, along
with Huge Ice Dams indicating Major Heat Loss. Lots Dripping water from Vault.
Water was running down exterior walls. Thought there might be a spot for Mice
getting in.
What Happened: Fiberglass Insulation slows down Warm Air Movement (Infiltration).
It doesn't stop it, so as the warm air came into contact with Plywood Roof Sheathing
in the winter (Below 32 Degrees F) Frost and Condensation occur. At some point
it needs to melt. In many roof systems, it has little chance of drying out. Creating
perfect conditions for Mold. Also Can Lights much to close to the roof deck.
Also very inefficient and expensive. Foaming it was the perfect solution for
the problems.
We tore off existing roof plywood, and removed Fiberglass Insulation. Noticed
extensive rotting of plywood. Lots of mold and frost. Bats and guano everywhere.
Mice and Red Squirrels also. In the Pictures, NOTICE THE DAMAGE TO THE WIRES.
Major fire hazard. Lots of places rodents had chewed their way into the structure.
They were adding on to the North side of home anyway. But had to rip the entire
roof as a result of the damage. We pulled out all old insulation, and replaced
with 8 inches of Icynene Insulation. Took about a week to tear off and replace.
We did it one section at a time to keep weather out.
Contractor had to circle the whole house and fix any area where bats and mice
were getting in.
No problems since.
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